Part A. 615.44
Part B. 78.5
So to answer you just have to substitute all the given choices into the formula and see which come out true.
2(1) - 3(-3) >_ 12
2 + 9 >_ 12
11 >_ 12
XNXOXPXEX
2(8) - 3(1) >_ 12
16 - 3 >_ 12
13 >_ 12
VYVEVSV
2(3) - 3(2) >_ 12
6 - 6 >_ 12
0 >_ 12
XNXOXPXEX
2(-2) - 3(-6) >_ 12
-4 + 18 >_ 12
14 >_ 12
VYVEVSV
2(2) - 3(3) >_ 12
4 - 9 >_ 12
-5 >_ 12
XNXOXPXEX
2(1) - 3(8) >_ 12
2 - 24 >_ 12
-22 >_ 12
XNXOXPXEX
2(-3) - 3(1) >_ 12
-6 - 3 >_ 12
-9 >_ 12
XNXOXPXEX
VYVEVSV = yes
XNXOXPXEX = nope
-78
Step-by-step explanation:
(7-8)(78)
(-1)(78)=-78
For a two-tailed test we need to halve 0.01, giving 0.005. Then we need to sutract 0.005 from 0.5, giving 0.5 - 0.005 = 0.495. Looking up the p value of 0.495 in an inverse normal probability table we obtain the value z = 2.5758. Therefore the critical values are -2.5758 and 2.5758.
